/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/Widgets/SNiagaraParameterMenu.h
void AddParameterGroup ( [FNiagaraMenuActionCollector](API\Plugins\NiagaraEditor\FNiagaraMenuActionCollector) & Collector, [TArray](API\Runtime\Core\Containers\TArray)< [FNiagaraVariable](API\Plugins\Niagara\FNiagaraVariable) > & Variables, const [FGuid](API\Runtime\Core\Misc\FGuid) & InNamespaceId, const [FText](API\Runtime\Core\Internationalization\FText) & Category, int32 SortOrder, const [FString](API\Runtime\Core\Containers\FString) & RootCategory )